diff options
Diffstat (limited to 'src/math/coshf.c')
| -rw-r--r-- | src/math/coshf.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/src/math/coshf.c b/src/math/coshf.c index 9e87afcd..97318f10 100644 --- a/src/math/coshf.c +++ b/src/math/coshf.c @@ -15,7 +15,7 @@ #include "libm.h" -static const float one = 1.0, half = 0.5, huge = 1.0e30; +static const float huge = 1.0e30; float coshf(float x) { @@ -32,21 +32,21 @@ float coshf(float x) /* |x| in [0,0.5*ln2], return 1+expm1(|x|)^2/(2*exp(|x|)) */ if (ix < 0x3eb17218) { t = expm1f(fabsf(x)); - w = one+t; + w = 1.0f+t; if (ix<0x39800000) - return one; /* cosh(tiny) = 1 */ - return one + (t*t)/(w+w); + return 1.0f; /* cosh(tiny) = 1 */ + return 1.0f + (t*t)/(w+w); } /* |x| in [0.5*ln2,9], return (exp(|x|)+1/exp(|x|))/2; */ if (ix < 0x41100000) { t = expf(fabsf(x)); - return half*t + half/t; + return 0.5f*t + 0.5f/t; } - /* |x| in [9, log(maxfloat)] return half*exp(|x|) */ + /* |x| in [9, log(maxfloat)] return 0.5f*exp(|x|) */ if (ix < 0x42b17217) - return half*expf(fabsf(x)); + return 0.5f*expf(fabsf(x)); /* |x| in [log(maxfloat), overflowthresold] */ if (ix <= 0x42b2d4fc) |